Dynamic and static disc hydraulic expansion sleeve clamp

Abstract

The utility model discloses a dynamic and static disc hydraulic expansion sleeve clamp which comprises a dynamic clamping assembly and a static clamping assembly, the dynamic clamping assembly comprises a dynamic positioning seat, a dynamic positioning disc, a dynamic clamping jaw and a hydraulic stress application sliding sleeve, and the static clamping assembly comprises a static positioning seat and a static positioning disc. The dynamic clamping assembly and the static clamping assembly are controlled to act by a hydraulic oil way through flow dividing pipes for equally dividing oil pressure in a flow dividing mode, the clamp is in transition fit with a hydraulic stress application sliding sleeve drawing hole in a penetrating and sleeving mode through an oil way base of the dynamic clamping assembly, the lifting pressurization force application action is achieved, and the expansion or contraction action is synchronously implemented through a plurality of dynamic clamping jaws. The hydraulic expansion sleeve is clamped and positioned in the radial direction, then a conical positioning curved surface is arranged on a static positioning disc of the static clamping assembly, after the conical hydraulic expansion sleeve is placed in an inner hole, air exhaust is conducted on an inner hole cavity through air pressure or hydraulic air exhaust equipment arranged in a static positioning base, the conical hydraulic expansion sleeve is tightly attracted to the static positioning disc, positioning is rapid, and the clamping effect is good. The sales volume is improved.

Description

Technical Field

[0001] The utility model specifically relates to the technical field of automated clamp equipment, in particular to a clamp which is convenient for positioning and clamping a hydraulic expansion sleeve used in a hydraulic system. Background Art

[0002] As an important bearing body in the hydraulic transmission system, the sealing performance and structural rigidity of the hydraulic cylinder are important technical parameters. Among them, the hydraulic expansion sleeve is one of the force-bearing parts that bear the most concentrated hydraulic pressure, and the matching surface accuracy with the end face parts is extremely high. The processing accuracy of the CNC milling machine can be guaranteed, but for the positioning and clamping of the hydraulic expansion sleeve that needs to be processed in batches, the practical fixture is relatively single, and because the shaft diameters to be positioned by the hydraulic expansion sleeve are different, radially adjustable clamping is required. There are also conical hydraulic expansion sleeves, which are easy to loosen from the radial clamping, so a special positioning fixture is required to meet the positioning needs of batch processing. Utility Model Content

[0003] The purpose of the utility model is to focus on the background technology for positioning and clamping hydraulic expansion sleeves that need to be processed in batches. The clamps used are relatively simple, and since the shaft diameters of the hydraulic expansion sleeves to be positioned are different, radially adjustable clamping is required. In addition, there is also the problem that the conical hydraulic expansion sleeves are easily loosened from the radial clamping. We design a dynamic and static disc hydraulic expansion sleeve clamp.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A dynamic and static plate hydraulic expansion sleeve clamp comprises a dynamic clamping assembly and a static clamping assembly, wherein the dynamic clamping assembly comprises a dynamic positioning seat, a dynamic positioning plate, a dynamic clamping claw and a hydraulic force-added sliding sleeve, and the static clamping assembly comprises a static positioning seat and a static positioning plate. Both the dynamic clamping assembly and the static clamping assembly are controlled by a hydraulic oil circuit through a shunt pipe for evenly distributing the oil pressure.

[0006] The dynamic clamping assembly is used to clamp and position hydraulic expansion sleeves with different shaft diameters. The dynamic positioning seat is sealed with the oil circuit base, and the oil circuit channel opened in the oil circuit base controls the oil inlet and outlet pipelines arranged inside the dynamic positioning seat. The oil circuit channel is connected with the diverter pipe through the hydraulic oil pipe. The oil circuit base is transitionally matched with the hydraulic booster sleeve extraction hole and sleeve, and the oil inlet pipeline is tilted to face the oil chamber at the upper end of the hydraulic booster sleeve to apply pressure to the hydraulic booster sleeve so that the hydraulic booster sleeve slides downward. The upper end of the hydraulic booster sleeve hooks a plurality of dynamic clamps, and the hydraulic expansion sleeve to be positioned and clamped is placed in the middle of the plurality of dynamic clamps, and the lifting, pushing and pulling actions are implemented. The dynamic clamp and the dynamic positioning plate fitting surface are inverted cone-shaped. As the dynamic clamp moves up and down, the dynamic clamp expands or contracts on the inverted cone surface.

[0007] The static clamping assembly is used to clamp the conical hydraulic expansion sleeve. A static positioning plate is arranged on the static positioning seat. The inner hole of the static positioning plate is provided with a positioning surface with the same taper as the conical hydraulic expansion sleeve to be positioned and clamped. After the conical hydraulic expansion sleeve is placed in the inner hole, the air pressure or hydraulic exhaust device arranged in the static positioning seat is used to exhaust the inner hole chamber, so that the conical hydraulic expansion sleeve is tightly sucked onto the static positioning plate.

[0008] Furthermore, the outer peripheral annular array of the dynamic clamping assembly is provided with a plurality of groups of rotary pressing assemblies, including a rotary pressing cylinder and a pressing arm, and the pressing arm performs synchronous pressing and positioning on the hydraulic expansion sleeve.

[0009] Furthermore, both the dynamic positioning seat and the static positioning seat are provided with an oil channel gas detection channel, and the air tightness of the pipeline is detected by passing helium gas.

[0010] Furthermore, an angle limit block is provided on the dynamic positioning plate to limit the circumferential rotational freedom of the hydraulic expansion sleeve.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The dynamic and static disk hydraulic expansion sleeve clamp utilizes the oil circuit base of the dynamic clamping component and the transition cooperation of the hydraulic booster sleeve extraction hole and sleeve insertion to realize the lifting and lowering pressurizing and forcing action similar to the hydraulic cylinder structure, and utilizes a plurality of dynamic clamping claws to synchronously implement the expansion or contraction action, radially clamps and positions the hydraulic expansion sleeve, and then utilizes the static positioning disk of the static clamping component to be provided with a conical positioning surface. After the conical hydraulic expansion sleeve is placed into the inner hole, the air pressure or hydraulic exhaust device provided in the static positioning seat exhausts the inner hole chamber, and the conical hydraulic expansion sleeve is tightly sucked onto the static positioning disk. The positioning is fast, and it is suitable for CNC machine tool processing of batch hydraulic expansion sleeves, which can improve sales and is practical and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the state in which the hydraulic expansion sleeve clamp of the dynamic and static disks of this embodiment clamps the hydraulic expansion sleeve;

[0014] Figure 2 It is a side plan view of the hydraulic expansion sleeve clamp of the dynamic and static discs of this embodiment;

[0015] Figure 3 This is a side view of the hydraulic expansion sleeve clamp of the dynamic and static discs of this embodiment;

[0016] Figure 4 It is a cross-sectional view of the transition fit between the oil circuit base and the hydraulic booster sleeve withdrawal hole and sleeve insertion according to this embodiment;

[0017] In the figure: 1-oil circuit base, 2-dynamic positioning seat, 3-dynamic positioning plate, 4-hydraulic expansion sleeve, 5-pressing arm, 6-rotating pressing cylinder, 7-conical hydraulic expansion sleeve, 8-static clamping assembly, 9-static positioning seat, 10-hydraulic oil pipe, 11-diverter pipe interface, 12-diverter pipe, 13-dynamic clamping claw, 14-hook, 15-inner hole, 16-static positioning plate, 17-dynamic positioning seat body, 18-base of dynamic positioning seat, 19-screw hole, 20-first upper air inspection port, 21-oil inlet, 22-oil outlet, 23-positioning hole, 24-second upper air inspection port, 25-air inlet, 26-air outlet, 27-slot, 28-oil chamber, 29-hydraulic booster sleeve, 30-oil inlet pipeline, 31-fitting surface, 32-angle limit block. DETAILED DESCRIPTION

[0018] The technical solution of the present utility model will be described clearly and completely in the following in conjunction with the accompanying drawings in the form of embodiments.

[0019] See also Figures 1 to 4 The embodiment of the utility model proposes a dynamic and static disc hydraulic expansion sleeve 4 clamp, including a dynamic clamping component and a static clamping component 8, the dynamic clamping component includes a dynamic positioning seat 2, a dynamic positioning disc 3, a dynamic clamping claw 13 and a hydraulic booster sleeve 29, the static clamping component 8 includes a static positioning seat 9 and a static positioning disc 16, and the dynamic clamping component and the static clamping component 8 are both controlled by the hydraulic oil circuit through a shunt pipe 12 that evenly distributes the oil pressure.

[0020] See also Figure 2 and Figure 3 The dynamic clamping assembly is used to clamp the hydraulic expansion sleeve 4 with different positioning shaft diameters. The dynamic positioning seat 2 is sealed with the oil circuit base 1, and the oil circuit channel opened in the oil circuit base 1 controls the oil inlet and outlet of the oil inlet pipeline 30 and the oil outlet pipeline arranged inside the dynamic positioning seat 2. The oil circuit channel is connected with the shunt pipe 12 through the hydraulic oil pipe 10. The oil circuit base 1 is transitionally matched with the hydraulic boosting sleeve 29 through the hole and sleeve, and the oil inlet pipeline 30 is tilted to face the oil chamber 28 at the upper end of the hydraulic boosting sleeve 29 to apply pressure and force, so that the hydraulic boosting sleeve 29 slides downward, and the upper end of the hydraulic boosting sleeve 29 hooks 6 dynamic clamps 13, see Figure 4 The hydraulic expansion sleeve 4 to be positioned and clamped is placed in the middle of the six dynamic clamps 13, and the lifting, pushing and pulling actions are implemented. The dynamic clamps 13 and the dynamic positioning plate 3 have an inverted cone-shaped fitting surface 31. As the dynamic clamps 13 are lifted and lowered, the dynamic clamps 13 expand or contract on the inverted cone surface.

[0021] See also Figure 2 and Figure 3The static clamping assembly 8 is used to clamp the conical hydraulic expansion sleeve 7. A static positioning disk 16 is arranged on the static positioning seat 9. The inner hole 15 of the static positioning disk 16 is provided with a positioning surface with the same taper as the conical hydraulic expansion sleeve 7 to be positioned and clamped. After the conical hydraulic expansion sleeve 7 is placed in the inner hole 15, the air pressure or hydraulic exhaust device arranged in the static positioning seat 9 exhausts the chamber of the inner hole 15, so that the conical hydraulic expansion sleeve 7 is tightly sucked onto the static positioning disk 16.

[0022] See also Figure 1 The outer peripheral annular array of the dynamic clamping assembly is provided with three groups of rotary pressing assemblies, including a rotary pressing cylinder 6 and a pressing arm 5 , and the pressing arm 5 is directly facing the hydraulic expansion sleeve 4 to implement synchronous pressing and positioning.

[0023] See also Figure 3 The dynamic positioning seat 2 and the static positioning seat 9 are both provided with oil passage gas detection channels, and the air tightness of the pipeline is detected by passing helium gas.

[0024] See also Figure 1 The dynamic positioning plate 3 is provided with an angle limit block 32 for limiting the circumferential rotational freedom of the hydraulic expansion sleeve 4.

[0025] The above describes in detail the implementation modes of the present invention in conjunction with the accompanying drawings, but the present invention is not limited to the above implementation modes. Various changes, modifications, substitutions and variations can be made within the knowledge scope of ordinary technicians in the field without departing from the purpose of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A dynamic and static plate hydraulic expansion sleeve clamp, comprising a dynamic clamping assembly and a static clamping assembly (8), characterized in that: The dynamic clamping assembly comprises a dynamic positioning seat (2), a dynamic positioning plate (3), a dynamic clamping claw (13) and a hydraulic booster sleeve (29); the static clamping assembly (8) comprises a static positioning seat (9) and a static positioning plate (16); the dynamic clamping assembly and the static clamping assembly (8) are both controlled by a hydraulic oil circuit through a shunt pipe (12) for equally distributing oil pressure. The dynamic positioning seat (2) is sealed with the oil circuit base (1), and the oil circuit channel opened in the oil circuit base (1) controls the oil inlet and outlet of the oil inlet pipeline (30) and the oil outlet pipeline arranged inside the dynamic positioning seat (2). The oil circuit channel is connected with the diverter pipe (12) through the hydraulic oil pipe (10). The oil circuit base (1) is transitionally matched with the hydraulic boosting sleeve (29) through the extraction hole and sleeve, and the oil inlet pipeline (30) is tilted to face the oil cavity (28) at the upper end of the hydraulic boosting sleeve (29) to apply pressure and force, so that the hydraulic boosting sleeve (29) slides downward. The upper end of the hydraulic boosting sleeve (29) hooks a plurality of dynamic clamps (13), and the hydraulic expansion sleeve (4) to be positioned and clamped is placed in the middle of the plurality of dynamic clamps (13), and the lifting, pushing and pulling actions are implemented. A static positioning plate (16) is arranged on the static positioning seat (9), and an inner hole (15) of the static positioning plate (16) is provided with a positioning curved surface having the same taper as the conical hydraulic expansion sleeve (7) to be positioned and clamped. After the conical hydraulic expansion sleeve (7) is placed in the inner hole (15), an air pressure or hydraulic exhaust device arranged in the static positioning seat (9) exhausts air from the chamber of the inner hole (15), so that the conical hydraulic expansion sleeve (7) is tightly attracted to the static positioning plate (16).

2. The hydraulic expansion sleeve clamp for dynamic and static discs according to claim 1 is characterized in that: The contact surface (31) between the dynamic clamping jaw (13) and the dynamic positioning plate (3) is in an inverted cone shape. As the dynamic clamping jaw (13) moves up and down, the dynamic clamping jaw (13) expands or contracts on the inverted cone surface.

3. The hydraulic expansion sleeve clamp for dynamic and static discs according to claim 1 is characterized in that: The dynamic clamping assembly is provided with a plurality of groups of rotary pressing assemblies in an annular array on the periphery thereof, including a rotary pressing cylinder (6) and a pressing arm (5), wherein the pressing arm (5) performs synchronous pressing and positioning on the hydraulic expansion sleeve (4).

4. The hydraulic expansion sleeve clamp for dynamic and static discs according to claim 1, characterized in that: The dynamic positioning seat (2) and the static positioning seat (9) are both provided with an oil channel gas detection channel, through which the gas tightness of the pipeline is detected by passing helium gas.

5. The hydraulic expansion sleeve clamp for dynamic and static discs according to claim 1 is characterized in that: An angle limiting block (32) is provided on the dynamic positioning disk (3).

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